Mounting for thermionic valves



Feb. 9 1926.

H. PERLESZ MOUNTING FOR THERMIONIC VALVES Filed July` 25, 1924 Patented Feb. 9, 1926'.

UNITED STATES PATENT OFFICE.'

HUGO PERLEsz, OF CHICAGO, ILLINOIS, ASSIGNOR, BY IIESNE ASSIGNMENTS. To

ZENITH RADIO CORPORATION,

A CORPORATION or ILLINOIS.

MOUNTING FOI-B THERMIONIC VALVES.

Application filed .Tuly 23, 1924. Serial No. 727,686.

`.To all 'u1/omit may concern.'

.Be it known that I, HUGO PERLESZ, a citizen of the United States, residing at Chicago, in the county of.-Cook and.I thel g the purpose stated comprised a' plurality of yielding members, in the form of blocks of sponge rubber, serially interposed between the valve and! the ultimate rigid supporting structure, such as a cabinet wall, the planes of free movements of these members being at right an les to each other. Another prior device inc uded a single horizontal rectangular block of Sponge rubber fastened at its four corners and carrying the valve at the intersection of its diagonals. 'Still another device included two parallel thick rubv ber strips eachfastened at each of itsends to an underlying rigid support and havingthe valve assembled therewith between its ends.

The prior mountings only partially performed-their function as they all included plinths or strips. of rubber of such size or extent and so assembled with their .rigid supports as to constitute comparatively broad bases.' Such a base, while tending to absorb the external vibrations, also opposed' material movements of the valve relatlve to its shock absorbing mounting, portions of this mounting being not only thus obstructive, but actually tending to transmit some ofthe very'vibrations tojtphewgalve that are intended to be absorbed.

The shock absorbinglnounting of my invention is so limited in extent and is so disposed as not, onl to permit,A universal movement of the va ve with. respect to the cabinet or other ultimate rigld support that vin 4,highly resilient ru ber.

indirectly carries the valve, but also preferably permits suliicient movements of the 'valve with respect to the shock absorbing mounting itself and of the shock absorbing mountlng with respect to either or both the rigid support and valve base to overcome thc objections stated.

The invention will be more fully explained connection. with the. accompanying drawing 1n which Fig. 1 is an elevation illustrating the preferred embodimentv of thoA invention; Fig. 2 is a side view, with4 a portionin section, of the structure shown in Fig.1; Fig. 3 is a view on line 3-3 o-f Fig. 1; Fig. LLis a sectional viw of another einbodiment taken on line 4-4 of Fig. 5; and Fig. '5 is a face view of the structure shown in Fig. 4.

The structure illustrated in Figs. 1, 2 and 3 includesa valve base 1 in the form of a narrow plate of insulating material, a row of sockets -2 that vare preferably metallicx and have bayonet slots 3 formed therethrough, thermionic valve bulbs 4 )whose bases are received in said sockets and carry pins 5 received in said bayonet slots, and

contact springs 6 mounted upon thevalve base 1 'and having their free ends in register with the bores of the sockets-to be enga ed by the terminal pins 7 of the elements wit in the bulbs when the pins upon the bulbs are fully seated in the bayonet slots. Stlll referring to the structure shown in Figs. l, 2 and 3, the valve base 1 is mounted upon a rigid support 8, such as the panel or wall of a. cabinet, through the intermediation of aligned resilient cushioning bodies 9, 10 arranged upon oppositesidses of the base 1 and held in assembly with said base andthe .rigid support by means of bolts 11, one boltto each pair of cushioning bodies. These boltsl are shown with their heads 12 seated against the rigid Support 8, and with thelr.

h and coaxial with the stems passing throu aligned resilient bodles 9, 10 that are preferablymadeof ve yielding or softvand The nuts 13"are screwed upon the outer ends of the bolts and thermionlc valves thereon to move univ'ersally to a limited extent with respect to the bolts. 'lhe axes of the bolts, sockets and the walls ot' the recesses 16 endless it will be apparent that movement of the mounting lll plate l in any direction relative to the support ,S will exert a direct compressive force on one or both cushions 9 and 10 and thereby enhance the shock absorbing characteristics ot` the structure over those structures in which no direct compressive force is exerted on the cushions when the mounting plate is moved in certain directions relative to its support. y

rlihe structure shown in ligs. 4 and 5 is generally similar to that shown in the other ligures, like parts being given similar characters of reference. But one bulb receiving socket 2l is shown in Figs. 4 and 5, this socket extending through the larger t hole S1 formed in the rigid support 8. The

contact springs 61 are located similarly to the contact springs 6 in the structure of Figs. l, 2, 3.

`Changes may be made without departing from my invention.

Having thus described my invention, l claim The combination with a mounting plate; of a support for said plate; bolts carried by said support and passing through holes formed in the mounting plate substantially midway between the sides of the plates, these-holes being larger than said bolts and aiioroing clearance between said bolts and mouning plate, said mounting plate also being formed with recessed seats on both sides thereof at and around each of said holes, the side walls of each of said recesses being endless; cushions disposed between said support and the adjacent side of said mounting plate and snugly received in the seats upon this side of said mounting plate; and other cushions snugly received 1n the seats upon the other side of said mounting plate and aligned respectively with the cushions upon the first side of the mounting plate, said bolts passing snugly through the aligned cushions andi' clamping the same and the mounting plate therebetween in assembly with said support, said cushions positioning said bolts clear of the mounting plate, whereby a direct compressive force will be exerted on at least one of the cushions upon movement of the mounting plate in any direction relative to the Suport. P In witness whereof, I hereunto subscribe my name.

HUGO PEnLnsz. 

